catlin



(No Model.) 2 Sheets-Sheet 1.

A. D. OATLIN. RESAWING MACHINE.

No. 449,772- Patented Apr. '7, 1891.

(No Modem Y 2 sheets-sheen 2. A. D. QATLIN. RESAWING MACHINE.

No. 449,772.. Patented Apr. 7, 1891.

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OF SAME PLACE.

RESAWING-IVIACHINE.

SPECIFICATION forming' part of Letters Patent NO. 449,772, dated' April 7, 1891.

Application filed May 17. 1890. Serial No. 352,247. (No model.)

.T all whom it may concern: v

Be it known that I, ABEL D. CATLIN, a citizen of the United States, residing at Chattanooga, in the county of Hamilton and State of Tennessee, have invented certain new and useful Improvements in Resawing-Machines; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in circular sawing machines, and pertains more especially to improvements in that class of sawing-machines which are adapted to resawing slabs, cull-boards, &c., into box material, heading, crate material, tbc., and make marketable products thereof.

The object ofv this invention is to provide a machine whereby the available portions of slabs and refuse of saw-mills may be cheaplyT and easily made useful and valuable material.

Another object of the invention is to arrange and construct a machine for resawing slabs, ttc., so that the parts may be quickly and accurately adjusted for cutting pieces of different thicknesses, and so that the speed of the feeding devices may be changed without loss of time in order to resaw pieces of dilferent widths to the best advantage, and so as to produce accurately and evenly sawed boards.

The invention consists in the combination and arrangement of the several devices and Vcontrivances which are assembled together in the construction of the machine, and which I shall hereinafter fully explain in detail, and specifically set forth in the claims of this specification.

My improved machine is illustrated in the accompanying drawings, throughout which the same letters of reference indicat-e the same parts or elements.

Figure 1 represents a front side view in l elevation of my improved resawing-machine,

partly sectional. Fig. 2 is a rear view of the same. Fig. 3 is a plan view, and Fig. 4 is a c are upper cross-pieces, while (l are lower 5 5 crosspieces, and e are lower longitudinal pieces, all of which are secured by their ends to the legs b by any suitable means.

Transversely with and upon the pieces d are secured the supporting-pieces f, the front 6o ends of which extend over the front side of the bed-piece a, and upon these pieces fis secured a table g, extending from end to end of the frame.

isa saw-arborcarrying. the saw j and is j ou r- 6 5 naled in suitable boxes resting upon the bedpieces a, and is arranged with the end which carries the saw projecting over the front side of the bed-piece, and a slot L is arranged in the table to receive the saw, so that the saw 7o will project above the table to nearly one-half of its diameter, and a pulley Z is mounted on the arbor for carrying a belt to impart a rotary motion thereto, and on the outer rear end of the arbor is mounted apulley m, upon A which is placed a suitable belt h for driving the feed mechanism.

Upon the rear lower frame-piece e is arranged a suitable box a, in which is mounted a transverse shaft o, while the inner end .of 8c the shaft, which is located near the middle of the frame, is supported by an oscillating box p, having a downwardly-extending lever q, to the lower end of which is pivotedone end of a rod o", the opposite end of the rod extending to the front end of the frame, and is provided with a handle s in a convenient location to be gra-sped by the hand, and the rod is also provided with a series of notches t, which engage with a catch u, arranged in the guide-piece e, 9o

which supports the end of the rod, and upon the outer end of lrhe shaft 0 is mounted a pulley d', over which the belt h, carried by the pulley m, is passed, and upon the inner portion of the shaft is mounted a frictionwheel o.

c is a vertical shaft with its lower end resting in a stop d', which is supported upon the ABEL D. GATIJIN, OF CHATTANOOGA, TENNESSEE, ASSIGNOR TO K. L. CATLIN Fig. is ascction 5o.

crosspiece l in proximity to the inner end of the shaft c, while the upper end of the shaft is supported by a box e', secured to the table g, (or to some other convenient portion of the frame,) from which it projects upwardly.

Upon the lower portion of the shaft is mounted a friction-disk h', arranged to engage its lower side face with the friction-wheel D when the shaft 0 is elevated by the rod 0' for that purpose, and upon the upper end of the shaft c is mounted a sprocket-wheel 'i'.

j' is a vertical gagc-plate extending the entire length of the table g, and is arranged with its front face on the inner side of and adjacent to the saw and with its lower edge near to the surface of the table, and la are rigid arms projecting rearwardly from the back side of the plate, and to the outer ends of these arms are pivotally secured the outer f ree ends of the arms Z', which project toward the rear end of the machine from the vertical shafts m', which are supported by the lower ends passing into or through the table or boxes supported thereon, while their upper ends are sustained in position by boxes n', carried by columns o', which are firmly secured to thc surface of the table by their lower ends.

The shafts `m are also provided. with rearwardly-projecting radial arms p', which lie substantially at a right angle with the arms t', and the outer freetends of the arms p are connected to each other by the rod q', the ends of which are pivoted thereto.

The lower end of the shaft m near the front end of the machine projects below the table g, and upon this end is rigidly secured one end of a lever r', and the opposite end of the lever extends to the front side of the machine and is provided with a handle s, which projects beyond the edge of the table, so as to be easily grasped by the operator, and which being drawn toward the front end of the machine oscillates the shaft m', to which it is secured, and through the radial arms p and the rod q also oscillates the other shaft m', and the oscillation of the shaft m in the direction stated swings the outer ends of the arms Z toward the front and moves the vertical plate toward the saw, while the rearward movement of the lever vr moves the parts in the opposite direction and retreats the vertical plate from the saw.

At the ends of the vertical plate j and projecting backwardly therefrom are arranged the supporting-boxes t and uf, and in these boxes are j ournalcd the vertical shafts e" and uf', and on these shafts which project beyond the boxes are mounted the upper sprocketwheels a and lower sprocket-wheels Z1, and a link belt c is passed over the sprockets a, while the lower link belt c is passed over the lower sprockets b, and upon the upper end of the rear shaft w', which projects above the sprockets a thereon, is mounted a sprocket e, over which and overthe sprocketwheel `i' is passed a link beltf.

g are vertical fecdbars extending across from the chain belt c to the belt d, and the end portions 7L of the bars are turned at a right angle baekwardly and pivotally secured to the link belts c and c so that the central portion g thereof will pass over the front surface of the vertical plate j', the ends of which are rounded olf to allow the bars to pass without catching', and the front edge of cach bar is provided with a series of spurs fi, adapted to catch into the piece to be sawed.

Power being applied to revolve the sawarbor and saw, motion is communicated therefrom to the shaft o by the belt h, and the fric tion-wheel b', operating on the disk 7L', in'iparts revolution to the vertical shaft e', which by means of the link belt e revolves the shaft zu and causes the link belts c and t to move over their sprockets and carry the vertical bars g toward the rear over the face of the vertical gage-platej. The slab or board to be resawed is placed with one edge resting upon the table g and with its flat or plane surface resting against the gage-plate, and the spurs Ji on the vertical bars then engage with the end of the piece and carry it toward the saw, which, cutting into the rear end, rc-

tains the piece in position until it is divided longitudinally, as intended, and then the portion on the outside of the saw drops over upon the table to be returned for another cut, while the dimension-piece sawed off is carried be yond the saw by the feeding-bar.

For changing the thickness of the pieces cut off the vertical plate, feeding-belts, and bars are moved or retreated from thc saw by moving the handle s to oscillate the shafts m in the required direction, the arms p being of an equal length, as also is the length of the arms Z equal to each other, so that a uniform movement is given to both ends of the vertical gage-plate, while the feeding-bars moving' close to the surface of the plate allow quite thin pieces to be cutoff. I do not,how ever, limit my invention altogether to the use of a circular saw for cutting the stock, as a common form of band-saw may as easily be used in the place of the circular saw, and the eifect of the operation of the parts will be the same.

Having described my improvement, what I claim as my invention is l. In a resawing-machine, the combination of a frame carrying a table, the saw-arbor journaled on the frame and carrying a saw with its upper portion projecting through the table, a vertical gage-plate beside the saw and above the table, and means, substantially as described, for moving the gage-plate to and from the saw, the vertical shafts in rear of the feed-plate and mounted in boxes secured to the ends of the feed-plate and carrying the upper and lower sprockets, the upper and lower end less feeding-chainsmountedon thesaidsprockets and in rear of the said gage-plate, with the Vertical feed-bars for moving over the face of the gage-plate and having their upper and TOO IIO

lower ends bent backward and secured to the upper and lower chains, and devices for moving the chains and feed-bars, substantially as set forth.

2. In a 1esawing-machi11e, the combination, with a frame carrying a table, a saw -arbor mounted on the frame and carrying` a saw projecting through the table, the vertical shafts m', supported in boxes above the table and provided with the arms Z', and the radial arms p', coupled together by the rod q', a lever for oscillating the shafts, a vertical gageplate above the table and provided with backwardlyprojecting arms pivoted to the outer ends ot' the arms, of the vertical shafts 'v' and w', journaled in boxes upon the end portions ABEL D. CA'FLIN. Witnesses:

LANE LYLE, J. P. I-IosKINs. 

